Work holding device



June 26, 1945. H. L. COLLINS 2,378,912

WORK HOLDING DEVICE Filed June 16, 1945 s sheets-sheet 2 June 26, 1945.H. L.. COLLINS 2,378,912

WORK HOLDING DEVICE Filed June 16, 1943 3 Sheets-Sheet 3 Patented June26, 1945 UNITED STATES P c i i ,n .n i

migreren is, 1943,7sria1 510,491,045?

*."Ihe present invention relates to improvements 1Std-'ils aholder.capable of universal adjustment.

I'he-primarypbject ofthe invention is to *profA vide ,fa `work holderand support which/may be easily ,and 'read-ily adjusted :to-various`angular positions to present the `vvork to Vthe machinewtool with ahigh degree of accuracy zand precision.

`Another object ofthe invention is `to .provide a LWQiik holder capable,of universal movement :in

\ various .directions to facilitate work .beingfpre-j sented :to `*themachine tool lona compound yangle or ,an angle .which sthe `resultant ofthe total of ithe various @angular adjustments in 4tvvo ormoredirections. i

flriotl'ler iobject of the invention Lis to provide a `iWork holder `asset forth finthepprecedingobjects lwher-,ein the `vvorklmay loe-movedtoa position .of nioety `of ladjustment and maintained A4in itspredetermined adjusted positionby clamping means associatedfwith the.work sholderbase Without Adisturbingthe radjustments previously made;Another-object Aof -the finvention is'ftoprovide a `work `holder` of`vthe above character iin -Whioh compound and `other dioult `angles mayxbe' quickly andeasily, determined by linultiple ladjusting fmeans andcooperating `graduations so that ,theyvork may abe `accuratelypositioned t and presented Ito :a precision machine `:tool without1reguiri-ngflaborious calculation andcomputationsgonthat-part,offthemachinist. i 7 Anotheruobjeol ofithe invention is vtoprovideia work iholde-r of the abovementioned (character having -aibase.member of angular formation tto faoi1itate-positioning of` theworktable at various predetermined angleswithoutadjustmenn or, if

(m4101599 i, i l t viilleut notierte holders, yand `more particularly,to a `sinn@really inviable .1,1 nosedfefsqiseeretivelyfewsaandartene-nere desired, itheiiwork holder Amay be adjustednto`otherangular positions from the predetermined angle of thetloasewithfthebase angle as astart ing orereferencepoin-t. l f u Another object ,offthe invention i is `to provide a ,Workfiholdgr andilsupport which may`be .adjusted:toaxiarous-.anglcs with` respect-to thea-hori- `zontal,and vertioaliand Lwhich i may @be adjusted ,toi-other angular`positions ;in succession @from ,the horizontal `and,vertical positions-to givea @total angular position withoutnecessitating*reference tofcomplicated f charts such `,as 1 sine, .tangent and esineftahlesi 1 y1v i A,flflvncitlier .object fof :the invention a is to Aprovideaiuniversally-adjustable Work itable and @holder in ithe .work tablemaybe :adjustediindependentlyiof +the Y, support :Ato i facilitate`movement of ,fitheworkabout :an `are L of 180 so; thatvarious M i www ti 4tile refiere sensueel detail,

, helder ,showing the location ef` i argilla; Resine demandait@ te?.i991 statutaire .the predetermined] angular esiste ments-x`f n I4iiwilylsr .abject ,9.1i .tee .intestine is stende a mit aviser 1,1W119i .tee-assumes@ als made by variatieA vente and s r cerifaeetignsuls 1. @ses leek ,the iuel'ielser seedeiital refinement er deelnemer-i ii @einer attester the tersa-10.12 is t? esatte@ e and broken and weiseis l esauste@ (Je sie eflicient econom cal ma r .s ,that ,the

sans Wai inet ,bekbhe 'sedili reassess-fd in use. c Other objects andadvantages of the invention will become .appar'ntduring ,the '.crl'se'fthe feiletgils sassarese@ ,ieeaseeieeernsfsilewi Swsr ,i ,n 1seMaiselvereesseiieael@trefle preierreeeietesiiinent @f eiareetiees'eewis? s 1,of ses werk Peltier Weseler aedsuspertw t l l@figure 2 is e ter Aniet new ef ,the intentie@ illustraties settlers. ihraf ,resetten iesiew teaarrsessmsni t' :meen

, .ef esili? ,Figure 31s ,e fticeleress S @intentioned @site tieferemYmQW i i i Figure lista Yside ,elevational `viren afirmar? c c c wdilated ad-iusias members eed elle fseetfslsspsel i Qfthiverieus dem@.Si i

tice falmdirsdfea bftile imitatie .illusiratingffen angled ,Seltsame s,peck hailing ,a

of clamping means' fQriIOC .fiaces'ofitherWorlemayl-be-brought`intotthecorrect 1 i. i

showt-,he ,tqrmatipnhof ,the ,angle `pases,liiolyii'in Beef@sisteminitieert f'ifheninvitien broadly @includes la i veils` helderAhoriz.octall\,,a?;is and; means @for @statins @thenahvcwpartlydnnsecspherical supporting member about its vertical axiswhereby work may be supported on a work table adjustably secured to thespherical supporting member in an angular position as a resultant of thetwo component adjustments. Further, the invention provides for rockingmovement of the spherical supporting member about its horizontal axis atapproximately 90 from the movement on the first mentioned horizontalaxis so that the component movements will result in positioningof theworky table at an incline with angle would be extremely difcult tocompute and determine. Also, the invention contemplates means forclamping the work holder and table in a preset position to preventaccidental movement thereof when the machine tool is operating on thework. L

In the modified form of the. invention, a fluid pressure operatedclamping device is substituted for. the clamping lever arrangement shownin Figures 1 to 4 inclusive and a unique and novel supporting base isprovided for the tool holder so thatwork may be presented to the machinetool on. compound angles without requiring adjustment or-setting of thetool holder.

Inthe preferred and modified forms of the invention. the work holderstructure is substantially the same andin each instance graduations areprovided on the spherical member and the rotatable member having aspherical cavity therein so that the rotating worms of the variousadjusting elements may be calibrated to provide a Vernier adjustment forindicating fractional parts o1' degrees between thegraduations on thespherical member and rotating member with the spherical. cavity therein.

Detailed description of tive invention In the preferred embodiment ofthe invention shown in Figures 1 to 4 inclusive, the'work holdercomprises a base 5 having a relatively flat bottom wall or surface 6 forbeing received on a surface table or relatively flat machine bed. Thebase is provided with diametrieally positioned and oppositelyv extendinglugs 1 having slots 8 to enable the base to be bolted in place upon asurface table or work bed. Formed `in the base 5 is a circular cavity`'9 providing a marginal annular flange Ill intofwhichv is tted a baseportion II of a body casting I2. .The base portion II is provided with around extension I3 received in the circular recess 9 to facilitate thecorrect positioning and 'aligning of the parts such as the base member 5and thev casting base member so that they may be held together byscrewsor the like. The. tubular extension I2 is provided with a central.npening I4 thereby forming a tubular.section I5 having an outwardlyflared section I6 and terminating in an upper section I1. The uppersectionl I1 is substantially hollow and is provided 'with an enlargedbore a in alignment with the bore I4 and said bore I8is reduced as at I9and 2llto form annular seats for the movable parts of the work holder.Mounted in the annular extension I5 within the'bore I4 thereof is arotatable sleeve 2| having an enlarged head portion 22 provided with asemi-spherical cavity 23. The enlarged head portion 22 is provided witha shoulder-24 adapted to rest upon a cut away portion 25 of the tubularportion l5 so as to be freely rotatable thereon, and further, theenlarged head portion 22 is provided with a shoulder( 26 adapted torestupon a stepped portion kof the tubular member-`|5 as at 20. Thelower end of the sleeve Crt y respect to the machine tool which inclineor formed integral with the outwardly flared portion I1 of the tubularextension I5.

The ends of the worm 38 may be provided with polygonal recesses forreceiving a wrench or the like when it is desired to rotate the sleeve2| and annular I enlarged head 22.

Slidably mounted within the bore 34 of the sleeve 2|l is a clampingblock 35 and said clamping block is keyed to the sleeve 2| by means ofakey or gib 36. The clamping block 35 is adapted to rotate with thesleeve 2| and is supported for rotation on a spherical bearing member 31received ina recess 38 formed on the under side or bottom wall of theclamping member 35. The spherical member 31is adapted to be engaged by afulcrum bar 38a. received in a suitable opening 39"in the base 5 andsaid bar 38a has one of its ends as at 48 supported on a projection 4|formed at one end of the elongated slot 39. The

opposite end of the fulcrum bar 28a is threaded as at 42 for receivingthe lower threaded end- 43 of arbolt or the like 44. The bolt isrotatably mounted in a bore 45 in the base section I 'and is providedwith a head I6 to facilitate'rotation thereof when it is desired toclamp the work in apredetermined set or adjusted position. The upperportion of the clamping block 35 is provided with a spherical cavity 41coextensive with the spherical cavity 23 in the sleeve 2| for receivingAa spherical supporting member or ball 48 which is of substantially thesame shape as the cavity formed by the spherical recesses 23 and 41. f

The spherical recesses 23 and 41 are provided with internal arcuategrooves 49 and' 59 respectively which are aligned and are adap-ted toslid- .ably receive a sector-shaped gear-toothed member 5I havingexternal gear teeth 52. The gear teeth52 are adapted to ride in theinternal slots 49 and 58 in the respective spherical recessed portions23 and 41 and the intermediate portion of the sector-shaped gearmembervl is provided with a projection 53 extendingrinto a slot 54 onthe median line of the spherical supporting member 48. Thefree end ofthe projection `53 is rounded to engage the side and bottom walls of thegroove 54 to allow free rotation of the spherical member 48 about ahorizontal axis.

Formed in the clamping block 35 is a bore 55 having annular shoulders 56adjacent each end thereof for rotatably supporting a worm 51 havingspiral threads or teeth 58 adapted to mesh with the teeth 52 on thesector-shaped gear element 5|. The enlarged ends 59 of the `worm 51engage the annular shoulders 56 to prevent longitudinal movement of theworm during rotation thereof.

to register with' a circumferential slot 6| formed in the tubularextension vI2 so that a wrench or Formed in the sleeve 2| at eachn endof the'worm 51 is an aligned bore 80 adapted 1v anaemia provided ffw'ithi la. fcylindfrieail portion 64 having Evaluations `thereon as at 65which lare risible fthroughiai slot 66 iform'e'd 2in ithe' enlargedyupper fend portion rtl-fof frth'e tubular extension ft2. .In thismanner fthe .number :of degrees iofl -zrotation may :he determined :by@registering-fthe graduat :tion all. n norm. theel @bis keyed :to :the@an- 85 lmithlanlindicating mark '.61 :formed on the irpenpheraflgsnriaoe sof the enlarged portion Illy p l l p l .Theiextremeiupperendofthe .enlarged zhead 22 ndjustin'gerin'g 'ml `Whichiris mndercut 4ias iati112 4to `atztatza;|1115klit fthe echamfered y.pontion A Theme,-

` ripheral portion of the :ring Ai'lil 'islpravidedwith i Morin engaginggear fteeth 13 which fareadapted to Aimesh with the -:teeth for ra wormJ4, limounted all) n 'isichamferedzasfatzl-:forirotatably receivingan fnular :enlarged :portion :alf :by means :of @a pin ,55 engagingwbihinvonposes (meanings -in the matf finetfaoesnf the enlargednraieatieml iansxwerm nha i1-r9.4.A fn work snnpeaingtable ia isrotatably supported en athelwarm `,ii/knel @l fand :is fro-` l'tatanlenpnn airetairriinefsnrew Slimming alewel withinftheflrousingZiintegrally connected ltofthe l :outwardly :flared ruppjer4lend rll .of i the tubular fexgear S30 rand is mrovidednwith enlarged`iendsl .similar to ithe aWormj-ll which Yare :suitably jonr-`yn'alleddin 'openings in the integrallyiformedfhousing CS2;lEaehfienlargedend `"l5 is provided with la ipolygon'a'l chore i216:forrreceiving an: adjusting l l =lygonalwlreoesses I|04 ior `reoeivingan :adjusting 4Wrendlfl ltoffaoiltaterotation `of the Worm 114 :and ling"to lthe` sphericalfshape of `the supporting vball W8"`fto allow freeluniversal :movement with .re-

speot thereto and tformeddntegral with fthe adi ljusting fixing" 11| isan annular irib `18` having a graduated peripheral sur'faced'll) adaptedto lfbe l i broughtinto*registryfwithiamarkingion theloliter 'sufaeefdffthe enlarged portion il ofthe tubul larfextensionforicasting |2.V` Theenlargedporlian" |11 is entradas aten toflaiiow ciearvision fof fthegraduations '119 l so fthat the i ring u may be *rotated iany -'nuniberI:0f"1predeterrnined deposed "lloc-,ations are Ibearing ibosses `8| inlwhich fairefljournaled opposed shaftsZ `to which are 'securedfbevehgears f83 las `clearly fshown in Fig-` 44 ures732 andfB.Thebevellgearsfil are adapted `to mesh :with lpear *teeth 'f8'4` formed`on a bevelled -ed'g'e of 5thfeislot "4 iso" that rotation of `saidshaft `|12 will be facilitatedfas"by` inserting'awrench'or-jthelikeiiniplygonal -recessesiormedlinthe @enlarged-renews ofthe-shaftse-z. Tnespneri;

nel" rnernber i143 will ,thns i loe rotated "about` a horii 'Zptal vaxisvirrdeperidently 4of vthe rotation 'or ad# justment imparteg1thereto` bymeans of` the worm isrwnen tneshagftssz are at an angie ef substantially90 ,fdegrees j to the Worm 5] `j and "sectorshapedglgearfl. The innerends of the "shafts 82 .areprovidedwith spherical extensions or prolIjeations. ,816 .which .engage .the side edges of the 4slet 51|andxprevent ,thegear teeth on the Lbevel ,gearlfromcontaeting-theropposite sidesof said `Slot.` l l l l In order toindicateathemovernent of thespher-` .lalnsupporting member .nlabout oneofoitshorizon-tal `-`axes as .by .means v`of` .the Worm 51, the4spherical ,member ,is graduated as #at lv88` `which may hebrueht ,intoregistry-with suitablemarkf :threaded fenders .fait 1,98 iihlzeeded :infthe (filmer nertion of thethirnble 93. Formed integral @with the undersideigf fthe tablegllvis a worm housing A99 inwhich is journaled a Worm|00 having fspiralteeth flllll engaging nand Ymeshingwith Jteeth :W2"fforrned on rthe Worm Wheel 594. The lworm llUU is "journaledlinitheehousing 93 in much lthe` 'sameimanner asfthe vworms @'57 andlll `:toprevent l endwise movementfthereof andethe enlarged yends of *the Wormlfllll as at l 03 areyprovided with po- Wrench1 likewise similar #tolthe recesses |33,` 63 r'and *16. -flhe-'enlargednds"l03imay begraduated as at |05 t-t'ojlproxgiide"a Vernier adjnstment,` and iitfisrtolbe ntedithat-jthe peripheral surfaceofa ipor- -tionfdf fthe wormWheel P931 is provided withua marking |116 adapted @to 'register gwithyfgraduai tions if l-"ll'l-on "a f drum portion ,ll lliformed lintegrall l `iavithltlfie Work supportingta'ble 95.`

t 11n the ylmouinearoim foraheinvenndnshown iniFigur-es `5 andi; thef.work-':holder :including =the "ibase section llgwtubular rextensonll2`-and enlarged #portion `ll"| rthereof iis @identical tto the 'llhefstructurefor #rotating and lad--` `jnsting the lspherical .supporting:member A8 fis the -rsanre mei that @shown `fin *Figures 1 t'to f4ineluswe, rand the Jinvention in the lmodified*form inFigureseandixfresidesiniafbaseimember I lillhaving an "annular recessil' above fwhich is posiltionedfalfdiaphragm |1l`2 oflcirculanshapesoasto` beiuterpose'd betweenfthe--fanged portion of-fthe `e base'section-illandfthelrbasefmember lll). Diametricallydisposed lugs ||3are formed on` the "fbaseseotionilfllliforhreceiving *hold down boltsflf|=4 which: areflanohored .in` suitable openings :l l E formed 1 in.lafsupporting lblock fl* l1 which l will 1 `be l 'hereinafter morefullyf'deseriloed.` The `eireular recess lill iprovides an Lain-chamberll8 `having communicationWithraroompressionl oharnber' l l 9`byrmeanszoffaiizluetifor passageway |.2|J. A threadfed bolt |l25|is-retseivediintheoompression chamber |I|9 land Eislsuitably threadedtherein. softhat rotation ofthebolt by the application `ofvaswrenohforf-thelikeitothe iheadul 22- will causetthe air :or uid.zintthe soompression lchamber l-i I9 'to expandlthe diaphragm le; |121and raise or` lower. the :clamping zblool; 5135 `ntrhioh -g-projectsdownwardly :within:thektubulerlextensiona l`v Theanglelsupportmgsbiockfl :risplendere-.with

fines non :ga retaining fras' .189 secured: ,to'theqenf l larged portion5H f of the :tubular extension 4J2.

Screws igor the `clile==i-r1ay :fbeepassedbzthrongh -the retainingir'erw rand anchored in :theenlareed `million lll zito'ihlldkthe sphericalmember :4B `in position. i lzsimilarly; the rspherioal usupporting'enecnrberla lill;isil;Itacnatledzas, at i91|] sonthat` the: de-`igiieeofirotatiomthereof1eiiected1by the-.benelgsars a `bottomiwalliorlisurface fl23,=and sidewalls |24 arranged at an angle of90ldegrees Withfrespect i to; one ianotherf asa-is :clearlyfshown in 1Fig.; i 6. A

lWork;holdingfsupportingface ori wall r l 25 connects thehypotenusefedges i of the :side `walls |24 so -thatzfthe 'li-work:holder: may i'be bolted lvto^` the face t \l25..and:`presentedtoathe'machine/'tool'` or .thewlike y iYataideiinitelyirfixed;compound:angle :The-:'sup- "porting iblock lf Himay be :placez'if` against a .verti calsupportfor fthe;likes'andatherwork" table `96 may i .heglpresenteditb.theltool'wthlthespherical supportingmembemlfsetnatitsrzeroimarkingsisvith respect tothe graduations 48 and 90. If desired,the work table S6 maybe shiftedA from the fixed angle by manipulatingthe various' adjusting screws or Worms 30, 51, 14 and lilo aswell as theadjustment of the bevel gears 83.

The thimble y93 is retained in position by means of a locking pin"|26having a cam-shaped end engaging the outer surface of the thimble,and saidlocking'caml |26 may have one of its ends provided with a kerfedhead to facilitate insertion of a screw driver so that the thimble maybe ,released and the table 96 removed as desired,

whereby a chuck or other form of work holder may be inserted in the bore92 in Ylieu of the work table 9s.

` Mode of operation After a piece of work to be machined has been placedupon the table 96, the various adjustments are made in accordance withvthe angle desired by rotating the worms 30, 51, and 14 and in rotatingthe Worms the graduations on the, enlarged ends may be used tofacilitate ne and accurate adjustment between the markings on thegraduatedparts 65, 19,88 and 90 so that minutes of degrees between thegraduations may be reached to impart a finer adjustment to the Worktable than if the graduations 65, 88 and 90 alone were employed. It isobvious that the spherical supporting member 48 may be `rocked about apair of horizontal axes and that each of the axes may be rotated. on avertical axis relative to one another so that the most diflcult compoundand component anglesV may be arrived at by simply setting the variousgraduations in accordance table 96 may beV presentedy to the machinetool in a numberof-various-complicated compound angles.

Afterthe spherical supporting member 48 has thus been set at apredetermined compound angle the clamping block 35 is: then Amovedupwardly by meansof the fulcrum lever 38 or the dia.- phragm H2 tofrictionally urge the spherical recess 41 into engagement with thespherical surface of the supporting member 48, whereby said spherical`supporting; member" 48 Will be locked and the table 96 Will be held inits adjusted position. c

Y"It is to be' understood, 'that'` the -forms Vof the invention'herewithshown and described are to beftakenV asv preferredr embodiments of theinvention, and that various changes in the shape, size and arrangementofpar-ts'maynbe resorted to `without departing from the' spirit of theinvention or the scope ofthe subjoined claims.

`I claim: l

1.' In a universal'work holder, a base, a socket portion, aVspherical-suppo'rting member `in the socket portion, means carried `bysaid base enthe socket, means carried by the base and; driv` inglyengaging the spherical supporting-.member for rocking the sphericalsupporting member about va pair of horizontal axes and meansfor rotating.said first-mentioned meansy :and said spherical memberon a'verticalaxis.

3. In a universal work holder, a base, a'socket portion mounted in saidbase for rotation about a vertical axis, a spherical supportingmember inthe socket, means carried by the socket portion engagingsaid sphericalsupporting member for rocking the spherical supporting Ymember about apair of horizontal axes and'means carried by the base for'independently7 rotating the socket portion,v on a vertical axis. f

4. In a. universal-work holder, a base, a socket rotatably mounted inthe base, Va spherical supporting member in the socket', meansAcarried'by the socket for drivingly engaging said spherical supportingmember for rocking the spherical supporting member about a pair ofhorizontal axes, means for rotating the socket on a vertical axis andmeans for clamping the` sphericalsupporting member in a pre-'setadjustedy position- 5. Ina universal Work holder, `a base,'xasocketmemberrotatably mounted in the base, a spherical supporting member inthe `socket,.manual means for moving said spherical i ,supporting memberfor rocking the spherical y supporting member about a pair of horizontalaxes, means for rotating the socket member on -a. vertical axis and anadjustablev work table supportedvori the spherical supporting member; v

6. In a. universal Work holder, a, base; a-socket member mounted on saidbase, a sphericalsupport located in said. socket member, manual meansfor moving said spherical supporting member for rocking andadjustingthespherical support about a horizontal axis, manual `means`carried by the socket member for movingathe ical support mounted insaid socket for universal movement, a clamping block slidably mounted inthe socket member adapted to engage said spherical supporting member andlock the same against movement, means in the clampingblock for engagingand adjusting the` spherical support on a horizontal axis, means carriedby the socket member engaging said spherical supporting member forturning and adjusting thesp-herical supporting member on anotherhorizontal axis and means carried by thebase for rotating the socketmember about a vertical axis of the spherical supporting member.

8. In a universal Work holder, a base, fa rotatable socket membercarried by the base, a sphericall supporting member mounted in Jsaidsocket for universal movement, a clamping block slid'- ably mounted inthe socket member engageable with the spherical supporting member tolock the f same against movement, means in the clamping block drivinglyengaging the spherical supporting member for turning and adjusting thespherical supporting membervon a horizontal axis, means carried by thesocket memberI drivingly engaging the sphericalsupporting member forturning `and adjustingfthe spherical supporting member "on another ihorizontal` axis .and` means for rotating the socket member and the lastmen.-

tioned means V,about an `axis perpendicular to the baser;`

9. In a universalwork holder, abase,` a rotatable socket member carriedby the base, aspherical support mounted in sa-idsocket `for universal imovement, a clamping block slidably mounted inl the socket memberengageable with" `said spherical supporttollock` the same inantiadjusted position, meanswinthe clar'nping` block drivingly1-engaging the sphericaltsupport* `for turninguand adjusting the sphericalsupport on afhoriZon-tal axis, 'means `carried by the socket memberdrivingly engaging the spherical sup.- port for turning. andadjustingthe spherical-support on another horizontal axis, means tor rotat- `ingthe socket `member.andzthelast mentioned l means carried by thesocketmember and means for moving` said clamping block into engagementwith thespherical memberto retain the same in anradiusted position. n;

10. Ina universal Work holder, `a base,` arbtab,

able socket member .carried -byrthe base, a spheri cal `support mountedin said socket for l universal movement-a clamping block slidablymountedin the socket member,` a sector shaped gearmount.-

ed in the socket member having a projection ex-l tending into a, grooveinthe sphericalsupportiug in the spheribajlsupporting member 'foradjust,- ing the t. same l, onY another horizontal axis; vand`projections carried "byfsaid vbevel sears extend.- ing lntofsaid ysloton .diametric'al opposed ,sides of thelsphericalsupporting member,whereby rota.- tion of said adjusting ring rotate the spheril `calsupporting member aboutI its,y vertical axis.

13. Inauniversalqwork holdena base, a ro.-

tatable `.socket member carried byy the base, a

spherical support mounted inzsaid socket for uni.-

versal `movement, `anclamping block slidably mountediu the socketmember, assector shaped gear mounted in thesolcket member havingfa pro.-jecticn` extendingfinto: afgroove in the spherical supporting` member,al wor-m carried by the clamp,-

ing block for oscillating said sectorgear and turning .thesphericalsuppcrting member lon'` its horigonta-l axis, a gearysupporting ringrotatably mountedfons the socketmember,l a pair; of bevelgears .on the 4ring,atiiiametrical opposedpoints` ber to retainthefsemein a predetermined sposi,.-

member, al worm .carried by the clampingblock for oscillating saidsector; gea-r: and turning the spherical` supporting member onlitshorizontal axis,A a gear; supporting" ring `rotatably mounted on;` thesocket membena pair of `bevel gears `on the ring at diametrical opposedpoints meshing withgear teeth `formed on the .edge of the Aslot in .thespherical supportingtmember for adjusting the sameoncanother``horizontal.axis and'fmeans ,4u

" t i messias sin; retraso nf for rotating and adjusting said gearsupporting 11. In a universal Work holder, a base,a rotatable socketmember carried by the base, a spherical support mounted in said socketfor universal movement, a clamp-ing block slidably mounted in the socketmember, asector shaped gear mounted in the socket member `having aprojection extending into a groove in the spherical supporting member, aworm carried rby the clamping block Afor oscillating said `sector gearand turning the spherical supporting member on itshorizontal axis, agear supporting ring rotatablysmounted on the socket member, a pair ofbevel gears on the ring at diametrical opposed points meshing with gearteeth formed on the edge of the slot in the spherical supporting memberfor adjusting the same on another horizontal axis, a Worm gear forrotating said socket member and a worm gear for rotating said gearsupporting ring, wherebysaid spherical supporting member may be adjustedabout its vertical axis.

12. In a'universal Workholder, a base, :arotatable socket member carriedby the base, a spher` l ical support mounted in said socket foruniversal movement, a clamping block slidably mounted in the socketmember, a sector shaped gear mounted in the socket member having aprojection extending into a groove in the spherical supporting member, aWorm carried bythe clamping block for oscillating said sector gear andturning the spherical supporting member on its i, horizontal axis, agear supporting ring rotatably mounted on the socket member, a -pair `ofbevel gears on s the ring `at diametrical opposed points ,meshing l withgear teeth formed on the edge `oi. the slot le. IIn a universal workholder, la bas, a rotate able .socket member Carried by the base, aspheri.-`

@al support mounted i in i said `socket ,for universal inet/errlent,` a.olaz-xmms. bloobslisiably ,mounted inthe socket plomber,` aseotorisbapod soar :mounted the member harina a. proies.:` tionortendineintoa groove the spherical son#` nortinemomber. e norm .carriedbythe `.clamping 3 bioritmi cocinan-nessi@ sector. soa-r `andsnhoriealslmportinemonitoren tailori-` rine; yro tably r, a pair ofbevel oel ooboaedtpoiots able socket member carried by thebase,.aspherical support mounted in said socket for universal movement, `a clampingblock slidably mounted in the socket member, a sector shaped gearmounted in thesocket member having a projec- `tionextending into agroove in the spherical supporting member, `a Worm carried by theclamping block for oscillating said sector gear and turning thespherical supporting member on its horizonf tal axis, a gear supportingring rotatably mounted on the socket member, a pair of bevel gears onthe ring at diametrical opposed points meshing-with gear teeth formed onthe edge of the slot in the spherical supporting member for adjustingthe same on another horizontal axis and a screw operated member formoving the clamping block into engagement with the spherical supportingmember whereby said spherical supporting member willbe locked in apre-adjusted position. i

y 16. In a universalwork holder, a base, aro"- tatable socket membercarried by the base, .a

` spherical support mounted in saidsocket `for universal movement,` aclamping block slidably mountedin thesocket member, means in theclamping block for turning and adjusting the spherical support4 on ahorizontal-axis, means carried byk thei socket memberfor turning andadjusting the spherical supporting memberl on another horizontal axis,means for rotating the spherical `support mounted in said socket for'universal movement, a clamping block slidably mounted in the socketmember, means in the "clamping block for turning and adjusting thespherical support on a horizontal axis, means carried bythe socketmember for turning and adjusting the spherical supporting member onanother horizontal axis, means for rotating the socket member about avertical axis of the spherical supporting member and a supporting blockfor saidl base having a pair of triangular walls extending at rightangles to one another with a supporting face connecting thehypotenuses'Vl of said triangular'walls whereby `to provide a. surfacehaving a compound angle as a resultant of the component angles of saidwalls.

18. I na universal Work holder, a base, a rotatable socket membercarried' by 'the base, a`

spherical support mounted in said socketV for f 19.'In a universal Workholder, a base, a rotatable socketmembercarried by the base, a sphericalVsupport mounted in said socket for universal movement,.a clamping blockslidably mounted in the socket member, means in the clamping block forturning and adjustingthe spherical support on a horizontal, axis, meansY carried by the socket member for turning and adjusting the sphericalsupporting member on spherical support mounted in said socket foruniversal movement, a clamping block slidably mounted in the socketmember, a sector shaped gear mounted iny the socket member having a`projection extending into a groove inthe spherical supporting member, aWorm carried bythe clamping block for oscillating said sector gear andturning the spherical supporting member on. its horizontal axis, a gearsupportingring rotatably mounted on the socket member,4 a pair of bevelgears on the ring" at diametrical opposedy points `meshing with gearteeth formed onthe edge of the slot in the spherical support-4 ingmember for adjusting the same on another horizontal axis, a worm forrotating said' bevel gea-r supporting ring independent Aof the socketmember, graduations on the spherical supportingmember, socket memberand' gear supporting ring and Vernier graduation marks on'the respectivecontrol elements of saidv spherical supporting element, socket memberand gear supporting ring.

H. LEWIS COLLINS.

